Function of electrically adjustable jacket tube - RA4600FBL0615X(46-0615)
| Adjustment | Adjustment from the initial position viewed in the direction of travel | in mm | Total adjustment in mm |
| Longitudinal adjustment | forwards | 22.5 | 55 |
| backwards | 32.5 | ||
| Vertical adjustment (models 129, 140 only) | upwards | 25 | 50 |
| downwards | 25 |
The steering column adjustment switch (S59) is located next to the rotary light switch on the lefthand side of the instrument panel on model 140.
Press up or press down = vertical adjustment (50 mm adjustment travel)
Pull out or press in = longitudinal adjustment (55 mm adjustment travel)
The steering column adjustment switch (S59) is located on the lower left of the jacket tube on models 124 and 129.